电子商务系统间建筑材料信息的交流平台--外文文献翻译.doc

外文资料翻译

英文原文

A platform for communicating construction material information

between e-commerce systems

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marketplace is limited ， buyers usually cannot find all the required materials from one

marketplace. This paper introduces a platform ， named ‘E-Union’, that enables

interoperation between e-trading marketplaces. The ability of marketplaces to interoperate

extends the idea of liquidity and network effect by joining more buyers with more

suppliers，without sacrificing the ability of each marketplace to be highly specific to the

supply-chain node or target buyer group it serves． This paper first discusses problems in a

non-interoperable E-commerce marketplace environment. Then two approaches for

enabling interoperation between marketplaces，the mobile agent approach and the Web

services approach ， are introduced ． The third part presents the concept, system

architecture and functions of the E-Union platform．

model, quality, price，etc.，or they can browse the products on display. When the products

requested by a buyer are found ，the information will be displayed to the buyer and the

contact information of an agent closest to the buyer’s location will also be sent to the buyer.

The buyer can negotiate with the agent about the price，or send an order to the agent by

completing some forms online. If the user could not find the desired products，the system

will keep the inquiry in storage for access by the sellers.

In recent years，several other construction e-trading sites have appeared on the Web.

They are operated by different organizations and attract different client groups ． They

specialize in trading materials from suppliers in different regions. From time to time,

however，clients of one e-trading system would like to buy materials that are not available

manually. These kinds of material finding jobs can be time consuming and the material

purchaser is required to keep abreast of new e-trading sites as they come online．

To provide better value-added services to the clients ， the concept of E-Union is

presented by linking together relevant e-trading marketplaces so that cooperation between

the e-trading marketplaces can be facilitated. In the e-trading union, when an e-trading site

does not have the material requested by one of its registered clients，the site will send a

request to other e-trading sites in the union. The remote e-trading site will treat the request

as one from an associated client. An associated client cannot directly make use of the

service of the e-trading marketplace as its registered client. When the material requested is

found, the remote site will inform the requesting e-trading site, which will decide whether

to submit an order on behalf of its client. Once a deal is made between the two e-trading

2 Approaches for Enabling Interoperation between E-Trading Marketplaces

architectures，platforms and software, it is not a trivial task to make them interoperable.

Several issues need to be addressed in order to realize the e-Union concept. The first issue

is how an individual e-trading system finds the service from other sites and communicates

with each other. The second issue is how systems understand the various kinds of data

from other systems，such as the query，order，and product information. Specifically，the

data may be in different formats and databases for representation and storage. This section

discusses two approaches for achieving interoperation between e-trading marketplaces，the

mobile agent approach and the Web services approach．

A mobile agent is a computer program that can autonomously migrate between

both in performance and reliability ， high variation of workload and network traffic,

mobility of hosts，etc. .Mobile agents can move through the network of sites to search for,

filter and process information needed to accomplish their tasks． Sending mobile agents to

the remote server results in a large performance improvement because they can reduce the

number of times one site contacts another and they can filter out non-useful information

thus reducing the consumption of communication bandwidth． Furthermore，mobile agents

bring flexibility and scalability into distributed ， dynamic systems due to its ability to

encapsulate policies，convention and algorithms and its ability to be dynamically created

and destroyed．

In a mobile agent based framework，an e-trading site joins the union by broadcasting